The bezel uses green ceramic (Green-CERAMIC) made from naturally derived raw materials. It is characterized by gentle pastel colors. Green-CERAMIC has high strength and creates a beautiful luster when polished. It is also good at creating nuanced colors because it is created by mixing pigments. Therefore, you can enjoy beautiful color variations. The case is made of recycled stainless steel with a hairline finish. This smart watch wear is both lightweight and luxurious. In addition to recycled stainless steel and naturally-sourced green ceramic made from recycled materials, the strap is made from recycled silicone. Even the strap is of the same color, so it has the effect of being an accessory. The "Plug & Rich Watch" system developed by HUMBLE RICH allows you to open and close the back cover by simply pressing the button on the side of the case. In addition, the "Plug & Rich Band" system allows you to easily change the belt with the touch of a press button.